package com.itheima.jobs;

import com.itheima.constant.RedisConstant;
import com.itheima.utils.QiniuUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import redis.clients.jedis.JedisPool;

import java.util.Set;

/**
 * 自定义的job，实现定时清理垃圾图片
 */
public class ClearImgJob {
    @Autowired
    private JedisPool jedisPool;
    public void clearImg(){
        //根据Redis中保存的两个set集合进行差值计算，获得垃圾图片名称集合
        Set<String> set = jedisPool.getResource().sdiff(RedisConstant.SETMEAL_PIC_RESOURCES, RedisConstant.SETMEAL_PIC_DB_RESOURCES);
        for (String picName : set) {
            //删除七牛云服务器的图片
            QiniuUtils.deleteFileFromQiniu(picName);
            //从redis集合中删除图片名称
            jedisPool.getResource().srem(RedisConstant.SETMEAL_PIC_RESOURCES,picName);
            System.out.println("自定义任务执行，清理垃圾图片"+picName);
        }
    }
}
